Answer to: Internal hard drive disk not recognizedI believe this problem is caused by dead capacitors in the power circuit. It explains all syptoms. I tried two replacement cables and it did work on low mAh hard drive i used for tests in computer service nearby. When i came home and tried my own wd black, it did not even started. I think it could be fixed by capacitor replacement but thats really tricky thing to do as there is no schematics availible.